"My Add Integration" Button leads to a 404 Not Found from NEST setup

Configuration
1

When accessing the my integration button on this page

although the correct URL appears on in the browser, when clicking on “open link” it goes to a 404 page

a
a786×234 13.2 KB

b
b1074×447 26.6 KB

c
c909×214 33.7 KB

d
d923×363 42.7 KB

2

I have the exact same issue. Home Assistant 2023.8.4

3

I saw something like this. I think the problem is it can not resolve homeassistant.local to the IP address on your HA instance. To fix it I put homeassistant.local in the hosts file on the computer running the browser and that solved it for me.

4

I’m using a valid FQDN, both the nabu casa one and my custom one that I have set up with a reverse proxy and neither works. When were you able to use that button successfully? I wonder if it broke in a release this year or something.